EP3801910B1 - Walzenpresse - Google Patents

Walzenpresse Download PDF

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Publication number
EP3801910B1
EP3801910B1 EP19712159.3A EP19712159A EP3801910B1 EP 3801910 B1 EP3801910 B1 EP 3801910B1 EP 19712159 A EP19712159 A EP 19712159A EP 3801910 B1 EP3801910 B1 EP 3801910B1
Authority
EP
European Patent Office
Prior art keywords
recesses
wear
roller press
studs
wear protection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19712159.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3801910A1 (de
Inventor
Zdzislaw Andrew GARDULA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Koeppern GmbH and Co KG
Original Assignee
Maschinenfabrik Koeppern GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Maschinenfabrik Koeppern GmbH and Co KG filed Critical Maschinenfabrik Koeppern GmbH and Co KG
Publication of EP3801910A1 publication Critical patent/EP3801910A1/de
Application granted granted Critical
Publication of EP3801910B1 publication Critical patent/EP3801910B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/283—Lateral sealing shields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers
    • B02C4/305—Wear resistant rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2210/00—Codes relating to different types of disintegrating devices
    • B02C2210/02—Features for generally used wear parts on beaters, knives, rollers, anvils, linings and the like

Definitions

  • This roller press is used in particular for crushing material, especially highly abrasive material such. B. ore, cement clinker, slag, kimberlite, coal or ceramic base materials.
  • Such a roller press for high-pressure comminution is also referred to as a high-pressure roller mill.
  • the invention also relates to roller presses for compacting or briquetting material.
  • processing material e.g. B. when crushing brittle, granular material, high forces and the roller surfaces are heavily stressed, so that the wear protection of the roller surfaces is of particular importance in practice.
  • cylindrical hard metal pins or nub bolts are used, which are embedded "hedgehog-like" in corresponding blind holes of the roll body and together with the pressed ground material form an autogenous wear protection layer (cf. EP 0 516 952 A1 ).
  • a wear protection layer of individual wear protection elements at least in a first wear zone, which relates in particular to the area of the minimum gap width of the roll gap, in which particularly high forces occur.
  • It can be a variety of plate-shaped wear protection elements (tiles) act z. B. from a wear-resistant composite material, z. B. made of hard metal, and are fixed in a dense arrangement next to each other flat on the base plate, z. B. by soldering.
  • delimitation plates or cheek plates with a tile-like, wear-resistant surface has basically proven itself in practice. With high forces in particularly critical areas, however, individual parts of the tiles can splinter off and this in turn offers points of attack for further breakouts, so that solutions with a tile-like structure can fundamentally be further developed. - This is where the invention comes in.
  • Limiting elements can also be provided in which pin-like wear protection elements are slidably arranged in sleeve-shaped holders, so that the wear protection elements are slidably arranged in the holders, e.g. B. to be able to adjust the supernatant of the wear protection element beyond the bracket.
  • the DE 10 2014 100 199 B3 describes a roller press with lateral guide walls, via which a friction-reducing substance is to be fed in solid, liquid or gaseous consistency, which reduces the wear caused by the material to be ground on the lateral guide walls.
  • the invention is based on the object of creating a roller press of the type described in the introduction, in which damage to the wear protection layer in the area of the lateral boundary plates or cheek plates is reliably avoided.
  • the wear protection layer in the area of the cheek plates should be characterized by a particularly high durability and consequently an optimal wear protection.
  • such a boundary plate is to be made available.
  • the invention is based on the finding that the splintering that may occur in boundary plates with a tile-like surface can be reliably avoided in a simple manner if a wear layer is realized from a large number of pin-like wear protection elements, with the pins not lying against one another laterally, but each independently in a variety of recesses, z. B. holes, are fully supported and thus stabilized. Since each individual pin is supported in a single hole over the full circumference and full length, there is no risk of it splintering and there are therefore no points of attack for further destruction of the surface. This structure reliably prevents the destruction of an individual element from progressing.
  • This configuration according to the invention avoids any bending stresses on the pins and this in turn means that pins made of particularly hard material can be used since they do not have to withstand any bending loads.
  • a particularly close arrangement of the pins can be implemented, ie the pins are arranged as close together as possible with the smallest possible spacing in order to obtain a wear protection layer that is as full-surface as possible from these pins.
  • the anti-wear pins are consequently used in the case of the lateral limiting plates according to the invention on the basis of different considerations and in a different arrangement than in the case of conventional "studlining" surfaces of press rolls.
  • the recesses on the one hand and the pins on the other hand are preferably of cylindrical design.
  • the recesses can, for. B. be formed as holes and preferably as blind holes.
  • the base plate is made of a ductile metal, e.g. B. made of steel.
  • the recesses are preferably integrated directly in one piece in such a base plate, e.g. B. by machining, preferably by drilling, milling or the like.
  • the anti-wear pins are preferably made of a wear-resistant multi-phase material, e.g. B. made of hard metal.
  • This is a non-oxidic material based on hard material in the form of an intermetallic (intermediate) phase consisting of a hard material and a binder phase.
  • Carbides preferably tungsten carbide (WC), or alternatively nitrides or borides are used as hard materials.
  • Co Co is used as the most important binder or binder phase.
  • pins with a particularly high degree of hardness can be used, since the pins are not subject to any bending stress for the reasons described.
  • the pins are completely inserted into the recesses (preferably precisely matched in diameter) and held in the recesses in a form-fitting and/or friction-locked manner by the pins z. B. are pressed into the recesses.
  • the pins are preferably arranged particularly densely on the base plate. It follows from this that the recesses surrounding the recesses and the individual recesses of a separating separating web are designed to be particularly narrow in the area of the minimum thickness. In this case, the minimum thickness can be less than half the diameter of the recesses themselves.
  • the recesses and accordingly the pins can, for. B. a diameter of 6 mm to 20 mm, z. 10mm to 20mm, e.g. B. 14 mm to 16 mm.
  • the separating webs can have a minimum thickness of less than 8 mm, preferably less than 6 mm.
  • the pins as pin-shaped anti-wear elements, have a length (ie initial length) which is greater than that Diameter of the pins, preferably more than 1.5 times the diameter, z. B. more than double.
  • the length of the pins is z. B. 10mm to 50mm, preferably 20mm to 40mm. With a diameter of 10 mm, the length z. B. 16 mm or with a diameter of 35 mm z. B. be 53 mm.
  • the recesses z. B. are designed as holes, preferably have a flat or level bottom. Furthermore, it is expedient if the pins also have a base which faces away from the wear surface and is likewise flat or even.
  • this embodiment is limited only to a spatially limited, first wear zone that covers the area of the roll gap with a minimum gap width.
  • it can be z. B. around a first wear zone with a width of 50 mm to 300 mm, z. B. 100 mm to 200 mm and with a height of 100 mm to 500 mm, z. B. act 150 mm to 350 mm.
  • the limiting plate preferably has a second (larger) wear zone which covers the area outside of said first wear zone.
  • This second wear zone which in particular covers the area above the first wear zone in the gap that widens counter to the direction of rotation, can e.g. B. be equipped with conventional wear protection elements in the embodiment as a plate-shaped tiles or with a flat build-up weld.
  • Plate-shaped tiles means plate-shaped wear protection elements whose diameter or width is greater than their height or thickness. It can in particular be polygonal tiles. However, these tiles are in the second Wear zone not individually arranged in individual recesses, but flat next to each other in a flat depression of the base plate.
  • a base plate made in one piece, in which on the one hand one or more flat depressions for the plate-shaped tiles in the area of the second wear zone and on the other hand a large number of recesses according to the invention for the pins are incorporated, e.g. B. by machining.
  • the delimiting plates described which preferably (each) have a base plate manufactured in one piece and the wear protection layer, are detachably fastened to carrier plates or mounting plates for the purpose of fastening.
  • the press rollers and the front side of the rollers are consequently each provided with a support plate which, for. B. is attached to the machine frame and itself is not made of wear-resistant or wear-resistant material.
  • the boundary plates according to the invention are releasably attached to the wear layer on these support plates, e.g. B. by means of screws or the like.
  • the carrier plates or mounting plates can preferably be made larger than the actual delimiting plates that form the wear protection plates.
  • the object of the invention is also a delimiting plate for a roller press of the type described.
  • the delimiting plate according to the invention which is equipped with the pin-shaped wear protection elements, is also independently protected. All variants and options that are explained in connection with the roller press can consequently also be implemented with the isolated boundary plates placed under protection.
  • the material feed area of a roller press is shown schematically in a highly simplified manner.
  • B. can be used for the crushing of material and is also referred to as a high pressure roller press or material bed roller mill.
  • the roller press has two press rollers 1, which are rotatably mounted in opposite directions in a machine frame, not shown.
  • the press rollers 1 are only indicated.
  • the material to be processed is introduced from above, z. B. in the sense of a gravity feed or by means of a screw feeder. Details are not shown.
  • the invention relates in particular to the lateral boundary plates 3, which are arranged in such a roller press to the side of the press rollers 1 and consequently limit the nip 2 on the front side of the rollers.
  • delimiting plates 3 In 1 only one of these delimiting plates 3 is shown, such a delimiting plate 3 being fastened to a carrier plate 4 .
  • carrier plates 4 are in turn fastened to the machine frame or machine frame of the roller press, not shown, so that the boundary plates 3 are replaceable, because the boundary plates 3 are subject to considerable wear during operation of the rollers.
  • the support plate 4 1 attached boundary plate 3 is in turn in the Figures 2a, 2b and 2c shown in different views.
  • the delimiting plate 3 which in practice is also referred to as the "cheek plate"
  • the wear protection layer 6 has a first wear zone 6a, which in particular covers the area of the minimum gap width of the roller gap 2, since particularly high forces and thus particularly high stress with corresponding wear occur in this area.
  • the wear-protection layer 6 has a second wear zone 6b, which relates in particular to the area above the first wear zone 6a, in which the roller gap widens in a funnel shape counter to the direction of rotation of the rollers.
  • this second wear zone 6b includes the two outer areas on the side of the first wear zone 6a, since lower forces also occur in this area.
  • the wear protection layer 6 is formed in a fundamentally known manner by individual wear protection elements made of a wear-resistant material, which are designed in the form of plates as tiles 7.
  • the base plate 5 a flat depression 8, in which a plurality of such adjacent tiles 7 are inserted, so that in the area of the second wear zone 6b a flat wear protection layer is formed from these tiles 7.
  • These tiles 7 are z. B. made of carbide.
  • the wear protection elements in the region of the first wear zone 6a are designed as pin-shaped wear protection elements and consequently as wear protection pins or pins 9 .
  • These preferably have a length L that is greater than the diameter D of the pins 9, preferably more than twice the diameter D.
  • the base plate 5 has a multiplicity of individual recesses 10 worked into the base plate in the first wear zone 6a.
  • the pins 9 are now individually inserted with their full length L into these recesses 10 in such a way that the pins 9 do not protrude beyond the recesses 10 but are inserted flush into the recesses 10 in the exemplary embodiment. In the exemplary embodiment shown, this is realized in that the length L of the pins corresponds (essentially) to the depth T of the recesses 10 .
  • the pins 9 can (also) be made of hard metal.
  • the base plate 5 is made of a ductile metal, e.g. B. made of steel.
  • the base plate 5 is made in one piece, i. H.
  • Both the flat recess 8 and the individual recesses 10 are integrated directly into the base plate, z. B. by machining.
  • the cylindrical recesses 10 for the pins 9 can, for. B. be formed as holes, preferably with a flat bottom.
  • the design of the base plate 5 results in particular from a comparative consideration of the Figures 2a, 2b and 2c with the Figures 3a, 3b and 3c , because the Figures 2a, 2b, 2c show the finished boundary plate 3 with base plate 5 and wear protection layer 6 attached thereto Figures 3a, 3b and 3c only the base plate 5 without the wear protection layer, ie without the tiles and the pins.
  • the recesses 10 in the base plate 5 are separated from one another by separating webs 11, these separating webs each surrounding the recess 10 over the full or part of the circumference.
  • the pins 9 are now inserted into the recesses 10 in such a way that the pins 9 do not protrude beyond the separating webs 11 and out of the recesses, but rather the front surfaces of the pins 9 are preferably flush with the separating webs 10, so that in the area of the first wear zone 6a a uniform, flat surface of the wear protection layer is formed.
  • the recesses 10 and thus also the pins 9 are arranged very close together, ie the separating webs are relatively narrow in the area of their minimum thickness, they have a minimum thickness b that is less than half the diameter d of the recesses 10 is.
  • the tiles 7 or the flat recess 8 are also dimensioned such that the tiles 7 end flush with their surface with the flat recess 8 or the border of the flat recess 8 and also flush with the pins 9 , so that overall a uniform wear protection layer 6 is realized with a substantially flat surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Crushing And Grinding (AREA)
EP19712159.3A 2018-06-06 2019-03-14 Walzenpresse Active EP3801910B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018113440.1A DE102018113440A1 (de) 2018-06-06 2018-06-06 Walzenpresse
PCT/EP2019/056491 WO2019233647A1 (de) 2018-06-06 2019-03-14 Walzenpresse

Publications (2)

Publication Number Publication Date
EP3801910A1 EP3801910A1 (de) 2021-04-14
EP3801910B1 true EP3801910B1 (de) 2022-06-15

Family

ID=65818513

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19712159.3A Active EP3801910B1 (de) 2018-06-06 2019-03-14 Walzenpresse

Country Status (7)

Country Link
US (1) US20210121892A1 (da)
EP (1) EP3801910B1 (da)
CN (1) CN112236234A (da)
AU (1) AU2019281754A1 (da)
DE (1) DE102018113440A1 (da)
DK (1) DK3801910T3 (da)
WO (1) WO2019233647A1 (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020104526B4 (de) 2020-02-20 2024-03-28 Maschinenfabrik Köppern Gmbh & Co. Kg Hochdruck-Walzenpresse
CN112257220B (zh) * 2020-08-31 2022-10-04 首钢京唐钢铁联合有限责任公司 一种高速钢工作辊局部磨损程度的获取方法、装置
DE102021103573B4 (de) 2021-02-16 2024-06-13 Maschinenfabrik Köppern Gmbh & Co. Kg Hochdruck-Walzenpresse
DE202021103408U1 (de) 2021-06-25 2022-04-04 Maschinenfabrik Köppern Gmbh & Co. Kg Hochdruck-Walzenpresse

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US412558A (en) * 1889-10-08 Surface for grinding and crushing
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JPS63143949A (ja) * 1986-12-09 1988-06-16 アイエヌジ商事株式会社 粉砕機に使用される破砕面部材
DE3806159A1 (de) * 1988-02-26 1989-09-07 Krupp Polysius Ag Walzenmuehle
DE4132474A1 (de) 1991-05-28 1992-12-03 Kloeckner Humboldt Deutz Ag Verschleissfeste mahlwalze fuer die verwendung in walzenmaschinen, insbesondere in hochdruckwalzenpressen
WO1995003126A1 (de) * 1993-07-20 1995-02-02 Maschinenfabrik Köppern Gmbh & Co. Kg Walzenpressen, insbesondere zum zerkleinern von stark abrasiven stoffen
DE19638237A1 (de) * 1996-09-19 1998-03-26 Deutz Ag Verschleißfeste Oberflächenpanzerung für die Walzen von Hochdruck-Walzenpressen zur Druckzerkleinerung körnigen Gutes
PT930948E (pt) * 1996-10-01 2001-01-31 Magotteaux Int Peca de desgaste composita
DE10335115A1 (de) * 2003-07-31 2005-02-24 Polysius Ag Mahlwalze
DE10354679A1 (de) * 2003-11-22 2005-06-30 Khd Humboldt Wedag Ag Mahlwalze für die Druckzerkleinerung körnigen Gutes
FI118518B (fi) * 2006-01-25 2007-12-14 Metso Powdermet Oy Menetelmä monimateriaalikomponentin tai -rakenteen valmistamiseksi sekä monimateriaalikomponentin tai -rakenteen käyttö
DE102007032177B3 (de) 2007-07-10 2009-01-08 Polysius Ag Walzenpresse mit einschiebbarem Mahlgutführungsblech
US8241761B2 (en) * 2007-08-15 2012-08-14 Mikhail Garber Abrasion and impact resistant composite castings for working in condition of wear and high dynamic loads
EP2445637A1 (en) * 2009-06-26 2012-05-02 FLSmidth A/S Wear-resistant roller
BR112012015020B1 (pt) * 2009-12-18 2019-12-17 Metso Minerais Wear Prot Ab membro de inserto alongado para um cilindro de moagem
DE202010013735U1 (de) * 2010-09-29 2012-01-13 Maschinenfabrik Köppern GmbH & Co KG Walzenpresse
PE20141153A1 (es) * 2010-12-29 2014-09-16 Smidth As F L Elemento de trituracion y metodo para hacer el mismo
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CN203281341U (zh) * 2013-04-24 2013-11-13 中信重工机械股份有限公司 一种高压辊磨机用下侧板
WO2014209417A1 (en) 2013-06-28 2014-12-31 Flsmidth A/S Wear apparatus for grinding rolls and methods thereof
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CN203711082U (zh) * 2014-03-14 2014-07-16 马鞍山市格林矿冶环保设备有限公司 一种耐磨型高压辊磨机
DE102015207922A1 (de) * 2015-04-29 2016-11-03 Takraf Gmbh Hartkörper als Rasterpanzerung für eine Rollenpresse, Verfahren zur dessen Herstellung, und Rolle für eine Rollenpresse
CN107497543A (zh) * 2017-10-27 2017-12-22 成都利君实业股份有限公司 一种镶片式侧挡板耐磨件

Also Published As

Publication number Publication date
US20210121892A1 (en) 2021-04-29
WO2019233647A1 (de) 2019-12-12
DE102018113440A1 (de) 2019-12-12
AU2019281754A1 (en) 2020-01-30
CN112236234A (zh) 2021-01-15
DK3801910T3 (da) 2022-08-29
EP3801910A1 (de) 2021-04-14

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